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Safety valve sealing structure of lead-acid storage battery

A lead-acid battery and sealing structure technology, applied in lead-acid batteries, structural parts, battery pack parts, etc., can solve the problem of easy aging of safety valve gaskets, achieve simple structure, avoid easy aging, and ensure performance and use. effect of life

Active Publication Date: 2015-01-07
ZHEJIANG TIANNENG BATTERY JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lead-acid battery safety valve sealing structure, which can solve the problem of easy aging of traditional safety valve gaskets

Method used

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  • Safety valve sealing structure of lead-acid storage battery

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Embodiment Construction

[0013] like figure 1 As shown, the sealing structure of the lead-acid battery safety valve includes a valve body 1 and a middle cover 2. The valve body 1 is cylindrical, with torsion ribs on the outer edge of the upper end of the valve body, and a vent hole inside the center. The exhaust hole is provided with a matching leather cap, an air filter is arranged below the exhaust hole, a cover is provided on the leather cap, and an air outlet is simultaneously arranged on the outer edge of the cover. The lower end of the valve body 1 is provided with an internal thread, and the valve body port inside the internal thread is provided with an annular protrusion 4, and the outer ring surface of the annular protrusion 4 has an included angle of 45° to 85° with the horizontal plane. The middle cover 2 is provided with an air outlet 6, and the air outlet 6 is provided with an external thread that matches the internal thread. The top of the inner mouth of the air outlet 6 has a rounded co...

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Abstract

The invention discloses a safety valve sealing structure of a lead-acid storage battery. The safety valve sealing structure comprises a valve body and a middle cover, wherein the valve body is shaped like a cylinder, an internal thread is arranged at the lower end of the valve body, an annular bulge is arranged at a port of the valve body inside the internal thread, the middle cover is provided with an air outlet nozzle, the air outlet nozzle is provided with an external thread matched with the internal thread, and the top end of an inner opening of the air outlet nozzle is in interference fit with the annular bulge to play a role in sealing. Due to the adoption of the technical scheme, a sealing gasket is not needed by the sealing structure, and thus the problems that the sealing gasket is easily aged and the like are also avoided, and the performance and the service life of the battery are effectively ensured; and the safety valve sealing structure is simple in structure and saves the cost.

Description

technical field [0001] The invention relates to a storage battery, in particular to a safety valve sealing structure of a lead-acid storage battery. Background technique [0002] The battery safety valve is an important part of the valve-regulated lead-acid battery. It directly affects the sealing reaction efficiency inside the battery. When the gas pressure inside the battery exceeds a certain value, the safety valve will automatically open, discharge the gas, and then automatically close. Under normal conditions, the safety valve is airtight. of. At present, the safety valve adopts two structures of threaded type and bayonet type, and the mating surface of the safety valve and the middle cover is provided with a rubber gasket. The rubber gasket has certain disadvantages. It is easy to age and harden after a long time, resulting in poor sealing of the safety valve, easy to cause the safety valve to loosen and leak air, resulting in serious water loss of the battery cell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/12H01M10/06
CPCY02E60/126Y02E60/10
Inventor 方学明李军
Owner ZHEJIANG TIANNENG BATTERY JIANGSU
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